"curiosity" is now roving the landing site huntingdghtinte lo signatures of past life. if it finds any "curiosity" might well be our number one again next year. john zarrella, cnn, miami. >> all right. a bit of news just in to cnn. it concerns the weather. >>> a tornado warning has been expanded in texas. let's head to meteorologist bonnie schneider. >> we've been watching the tornado warnings into areas of houston county in texas. it's now been expanded. zoom in right here and you'll see that love lady is in this tornado warning and it encompasses areas of houston county, trinity county, and north central polk county in southeast texas and this warning goes until 9:45 central time. now this is a doppler radar indicated tornado meaning meteorologists tracking doppler radar have noticed indications of rotations within the clouds so a tornado can touch down at any time. if you are in this vicinity take cover now. keep in mind we run the risk for tornadoes throughout the day today especially until 1:00 and this heads into louisiana. so southeast texas moving eastward into